Experimental Investigation of the Sail Position of a Submarine on the Downstream Flow Field

علوم کاربردی و محاسباتی در مکانیک

Article 5, Volume 27, Issue 1 - Serial Number 13, March 2016, Pages 71-86   

Document Type: Original Article

DOI: 10.22067/fum-mech.v27i1.35297

Authors

Shokrolaah Mohammad Beigi¹; Mojtaba Dehghan Manshadi^{* 1}; ali Saeidnezhad²; Ali Akbar Dehghan²

¹Malik Ashtar University of Isfahan

²Yazd University

Abstract

The effect of sail position on the downstream flow field of the sail is investigated in the wind tunnel. A five-hole pressure probe is used to measure the 3D flow field. The investigation of the five-hole results shows that the five-hole measurements can determine the horseshoe vortex structure. Also, the results show that the horseshoe vortexes become smaller by forward moving of the sail on the body to the nose. Therefore, if the sail is mounted on the hull near the bow, the performance of the impeller increases and nose level decreases.

Keywords

Horseshoe vortex; Submarine model; Sail; wind tunnel; Five-hole probe

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